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Download installer

  1. Log in as administrator.
  2. Check if your operating system is 32-bit or 64-bit (instructions).
  3. Download the setup program from the Download section of the MERLIN-Expo homepage.
  4. Run the MERLIN-expo_setup_XXX.exe file.
    1. Read the license agreement
    2. Select a destination folder for MERLIN-Expo. The todefault is C:\Program Files\4FUN.


The executables for MERLIN-Expo are located (unless otherwise specified during installation) in C:\Program Files\4FUN.

User data

The user files, including the model library and software updates, are located in the hidden user application directory. This directory can be found from the start menu:

  1. Open the start menu.
  2. In the Search box, type %appdata%
  3. The search result Roaming should now appear in the start menu. Click to open this folder.
  4. The user files of MERLIN-Expo are located in the folder 4-FUN


  • From the start menu, open All Programs. Select 4FUN > Uninstall MERLIN-Expo and follow instructions.



Internet connection

MERLIN-Expo features an automatic update system, both for the software itself and for the model library. The help section also benefits from an internet connection, as MERLIN-Expo will direct the user to the on-line help pages in preference to the local pages. Finally, the documentation of models contains links which will be opened in a web browser.

For all of this to work, MERLIN-Expo requires passage through your firewall. If you are behind a web proxy, you will need to configure proxy host and port:

  1. Launch MERLIN-Expo
  2. In the info screen, click the preferences button.
  3. Select the Updates tab
  4. Enter proxy host and proxy port.
  5. Restart MERLIN-Expo

Microsoft Excel

MERLIN-Expo uses the Excel file format for exporting and importing of data. You do not need to have Excel installed on your computer to be able to save Excel files. You will however, need Excel or an alternative 1) to edit the exported files.

installation_instructions.txt · Last modified: 2022/06/30 20:24 by boris